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v3.19.3.a.u2

Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Cash-Based Long-Term Incentive Compensation (Details) - Cash long-term incentive plan $ in Millions | 3 Months Ended | 6 Months Ended
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Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) Installment | Dec. 31, 2018 USD ($)
Cash Long-Term Incentive Plan |  |  |  |
Cash-based long-term incentive plan, granted amount |  |  | $ 4.3 | $ 5.6
Cash long-term incentive plan, compensation expense | $ 13.8 | $ 12.0 | 30.4 | $ 27.2
Cash long-term incentive plan, unrecognized compensation balance | $ 121.0 |  | $ 121.0 |
Minimum |  |  |  |
Cash Long-Term Incentive Plan |  |  |  |
Cash long-term incentive plan, equal vesting installments | Installment |  |  | 3 |
Cash long-term incentive plan, percentage of equal vesting installments |  |  | 33.33% |
Cash long-term incentive plan, vesting period |  |  | 3 years |
Maximum |  |  |  |
Cash Long-Term Incentive Plan |  |  |  |
Cash long-term incentive plan, equal vesting installments | Installment |  |  | 4 |
Cash long-term incentive plan, percentage of equal vesting installments |  |  | 25.00% |
Cash long-term incentive plan, vesting period |  |  | 4 years |

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